CD40: Alum. rectangular, airfoil, class I leakage, heavy duty, 6000 FPM, 13" w.c. max.
The CD40 has a 4" frame and aluminum construction. It features:
- Airfoil blades, which have greater strength, produce less sound, greater sealing ability, and static pressure loss.
- The ability to easily butt to the back side of a louver for tight shut-off capability.
- Unique double edge blade seal design that enables higher pressure on either side of the damper to assist in blade to blade seal shutoff.
- Linkage concealed out of the airstream for low maintenance and reduced air turbulence.
3900 Dr. Greaves Rd.
Kansas City, MO 64030
Tel: (816) 761-7476
Fax: (816) 761-1936
Web site: http://www.ruskin.com